Interlocking method and its structure for wheel-rim cover

ABSTRACT

This invention relates to an interlocking method and its structure for wheel-rim cover, which mainly has a wheel-rim body and a wheel-rim cover body. A plurality of engaging seats is integrally formed along the peripheral edge at the rear side of the wheel-rim cover body. Each engaging seat is pivotally contacted with an interlocking block. When the interlocking blocks are rotated with the pivotal contact portions as the axis and the other ends of the interlocking blocks pass through the horizontal radial line of the axis, both ends of each interlocking block will abut tightly against the wheel-rim body and the wheel-rim cover body respectively in view of the length between both ends of each said interlocking block being made to be larger than the vertical distance from the engaging groove of the wheel-rim body to the inside edge of the pivotal contact end of the interlocking block and the wheel-rim cover body. In this manner, the wheel-rim cover body can be stably inserted and fixed in the wheel-rim body. Moreover, during the stacking of a number of wheel-rim cover bodies uncombined with the wheel-rim body, the interlocking blocks are in the state of pivotally contacting with the wheel-rim cover body such that the interlocking blocks can be rotated. Therefore, the stocking space for the wheel-rim cover bodies can be reduced, and the delivery cost of the same is decreased accordingly.

BACKGROUND OF THE INVENTION

1. Field of the invention

The present invention relates to an interlocking method and its structure for wheel-rim cover, particularly to an interlocking method and its structure for wheel-rim cover in which interlocking blocks are used to insert and combine the wheel-rim cover body on the front side of the wheel-rim body, and the stacking of the wheel-rim cover bodies is not affected by the engaging seats such that the stocking space can be reduced.

2. Brief Description of the Prior Art

Wheel-rim under the bottom of car is closely linked with the performance and manipulation capacity of car, though not to be regarded as the main structure of the car body. Aside from the closely linking relationship between the size and the aspect ratio of tire, weight of the wheel-rim also affects acceleration capacity of car. Moreover, the wheel-rim plays an important role in momentum of the appearance and the whole design of car. Accompanying with the progress in material science, the material used in the wheel-rim is changed from iron in the early stage to aluminum alloy, Al—Mg alloy etc. now a day.

The abovementioned wheel-rim is interlocked with a wheel-rim cover. As shown in FIG. 12, the wheel-rim cover (5) is provided with a fixing seat (51) along the annular edge. A plurality of interlocking bodies (52) spaced at suitable interval are provided on the fixing seat (51). A steel ring (53) is provided to commonly surround among the interlocking bodies (52), so that the interlocking bodies (52) can be inserted and engaged with the ring edge of the car wheel-rim, under the support of the steel ring (53).

However, the above interlocking structure for wheel-rim cover has following defects in practical application.

-   1. The above interlocking structure for wheel-rim cover uses steel     ring to support the interlocking body of the wheel-rim cover so that     the interlocking body of the wheel-rim cover can be inserted and     engaged with the ring edge of the car wheel-rim. However, the steel     ring will contribute to the high cost. -   2. The above interlocking structure for wheel-rim cover uses the     interlocking body to insert and engage the wheel-rim cover with the     wheel-rim of car. However, the interlocking body can not be folded     so that wheel-rim cover takes a lot of space in packing.     Accordingly, not only the added delivery cost is increased but also     the business competitiveness becomes weaker.

SUMMARY OF THE INVENTION

In view of the above defects, the present invention provides an interlocking method and its structure for wheel-rim cover in which interlocking blocks are used to insert and combine the wheel-rim cover body on the front side of the wheel-rim body so as to ensure that the wheel-rim cover body will not detach from the wheel-rim body. In addition, the stacking of the wheel-rim cover bodies is not affected by the engaging seats such that the stocking space can be reduced.

The preferred embodiment of the interlocking method and its structure for wheel-rim cover of the present invention is characterized in that the interlocking method and its structure for wheel-rim cover mainly has a wheel-rim body and a wheel-rim cover body. A plurality of engaging seats is integrally formed along the peripheral edge at the rear side of the wheel-rim cover body. Each engaging seat is pivotally contacted with an interlocking block. When the interlocking blocks are rotated with the pivotal contact portions as the axis and the other ends of the interlocking blocks pass through the horizontal radial line of the axis, both ends of each interlocking block will abut tightly against the wheel-rim body and the wheel-rim cover body respectively so as not to be unable to rotate in view of the length between both ends of each said interlocking block being made to be larger than the vertical distance from the engaging groove of the wheel-rim body to the inside edge of the pivotal contact end of the interlocking block and the wheel-rim cover body.

According to the first embodiment of the interlocking method and its structure for wheel-rim cover of the present invention, the engaging seats are formed with engaging slots, and both sides of each interlocking block are formed respectively with pivotal contact portions. The pivotal contact portions are provided with protrusions to engage tightly with ridge portions provided on both sides of the engaging seats.

According to the other embodiment of the interlocking method and its structure for wheel-rim cover of the present invention, the engaging seats are provided with a common pivotal shaft, and the interlocking blocks are formed with pivotal claws which are pivotally contacted with said pivotal shaft.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be better understood by the detailed description of the following preferred embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective exploded view showing the first embodiment of the present invention.

FIG. 2 is a perspective view showing the wheel-rim cover body and the interlocking block of the first embodiment of the present invention.

FIG. 3 is a perspective exploded view showing the wheel-rim cover body and the interlocking block of the first embodiment of the present invention.

FIG. 4 is a front view showing the stacked state of a lot of wheel-rim cover bodies of the first embodiment of the present invention.

FIG. 5 is an assembly view showing the wheel-rim cover body and the interlocking block of the first embodiment of the present invention.

FIG. 6 is a assembled sectional view showing the wheel-rim cover body and the interlocking block of the first embodiment of the present invention.

FIG. 7 is a view showing the rotation state of the interlocking block of the first embodiment of the present invention.

FIG. 8 is a view showing the state of the interlocking block of the first embodiment of the present invention before insertion into the engaging groove.

FIG. 9 is a view showing the state that the interlocking block of the first embodiment of the present invention are inserting into the engaging groove.

FIG. 10 is a view showing the state of the interlocking block of the first embodiment of the present invention after insertion into the engaging groove.

FIG. 11 is a schematic view showing the second embodiment of the present invention.

FIG. 12 is a perspective exploded view of prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The technical contents of the present invention will become more apparent from the detailed description of the preferred embodiments in conjunction with the accompanying drawings.

Firstly referring to FIG. 1 showing a schematic view of the first embodiment of the interlocking method and its structure for wheel-rim cover of the present invention, a wheel-rim body (1), a wheel-rim cover body (2) and a plurality of interlocking blocks (3) are included therein.

The wheel-rim body (1) is made of metal material by casting or forging. The inner peripheral walls on the front and rear sides of the wheel-rim body (1) are respectively coupled with a hub (11) on which a plurality of holes (12) are arranged in ring shape. Both the front and rear outer edges of the wheel-rim body (1) are bent inward respectively to form an engaging groove (13) for engagement with the interlocking blocks (3) so that the wheel-rim cover body (2) can be fixed on the front side of the wheel-rim body (1).

The wheel-rim cover body (2) is formed as a convex type disk, as shown in FIGS. 2 to 4, on which a plurality of engaging seats (21) are integrally formed along the peripheral edge at the rear side. Each engaging seat (21) is formed as a rectangular box shape with its height substantially equal to the thickness from the center point of the wheel-rim cover body (2) to peripheral edge, such that the stacking eight of the wheel-rim cover bodies (2) can be reduced so as to save stocking space in factory. Each engaging seat (21) is formed with an engaging slot (22) of rectangular shape opening with respect to the peripheral edge of the wheel-rim cover body (2). The inner wall top end face and the bottom end face of the engaging slot (22) are tapered inward to form respectively an inclined surface (221). Both sides of each engaging seat (21) are respectively formed with ridge portion (23) with respect to the engaging slot (22) for holding the pivotal contact portion (32) of the interlocking block (3).

The interlocking block (3) is a flat plate body of rectangular shape, as shown in FIGS. 2 and 3, the cross sectional area of which is smaller than that of the engaging slot (22) of the wheel-rim cover body (2) such that the engaging slot (22) has space for the interlocking block (3) to rotate freely. The front end and the rear end of the interlocking block (3) are formed as inside edge (31) and outside edge (311) of circular arc shape. The outside edge (311) has two limbs extended on both sides to form pivotal contact portions (32) which are elongate flat plate body parallel to both lateral surfaces of the interlocking blocks (3). A semi-spherical protrusion (321) is provided on each end of the pivot portions (32) with respect to the inside edge (31) for holding the ridge portion (23) of the wheel-rim cover body (2).

In assembling process, as shown in FIGS. 1, 5 to 7, the inside edge (31) of each interlocking blocks (3) is inserted into the engaging slot (22) on the periphery of the wheel-rim cover body (2) and abuts against the inside wall of each engaging slot (22), and the semi-spherical protrusion (321) on the inner side of each pivotal contact portion (32) is engaged and held by the ridge portion (23). Since the cross sectional areas of the interlocking blocks (3) are smaller than that of the engaging slots (22) of the wheel-rim cover body (2), the interlocking blocks (3) can rotate freely in the engaging slot (22) with the inside edge (31) as the axis, and the upper and the lower sides of the interlocking blocks (3) are close to even in close contact with the inclined surfaces (221) in the interior of the engaging slots (22). As shown in FIG. 4, the wheel-rim cover body (2) can be stacked as a layered structure in such a manner that the interlocking blocks (3) are rotated to allow the outside edge (311) in close contact with the wheel-rim cover body (2). Since the height of each engaging seat (21) is substantially equal to the thickness from the center point of the wheel-rim cover body (2) to the peripheral edge, the stacking height of the wheel-rim cover bodies (2) can be reduced so as to save stocking space in factory. Accordingly, the delivery cost including export delivery expense and multi-stage inland delivery expense can be remarkably reduced.

In practical application, as shown in FIGS. 8 to 10, the interlocking blocks (3) can be rotated respectively in the engaging slots (22) of the wheel-rim cover body (2) with the respective inside edges (31) as the axis, and the lower side face of each interlocking block (3) is in close contact with the inclined surface (221) within the engaging slot (22) so that the outside edge (311) of each interlocking block (3) is away from the wheel-rim cover body (2). Then, the wheel-rim cover body (2) with all the interlocking blocks (3) is mounted on the front side of the wheel-rim body (1), and the outside edge (311) of the interlocking block (3) is abutted against the inside of the engaging groove (13) of the wheel-rim body (1). Next, the wheel-rim cover body (2) is pushed to be in close contact with the front side of the wheel-rim body (1). Along with the action of the wheel-rim cover body (2), the engaging seat (21) will move the interlocking block (3) to rotate such that the outside edge (311) of the interlocking block (3) passes through the horizontal radial line (L) of the axis, tilts to the wheel-rim cover body (2) and is finally fixed at the outer side within the groove (13). Since the length (M) between the front end and the rear end of the interlocking block (3) is larger than the vertical distance from the engaging groove (13) of the wheel-rim body (1) to the inside edge (31) of the pivot end of the interlocking block (3) and the wheel-rim cover body (2), the interlocking block (3) is difficult to rotate due to the shortage of required space. Thus, a very big force is required to pull the wheel-rim cover body (2) such that the engaging groove (13) of the wheel-rim body (1) is enlarged by the interlocking block (3), or the friction force between the outside edge (311) of the interlocking block (3) and the engaging groove (13) is overcome to cause the outside edge (311) of the interlocking block (3) move toward the inside of the engaging groove (13). In this way, the interlocking block (3) can get the required space to rotate, and then the wheel-rim cover body (2) can be stably fixed on the front side of the wheel-rim body (1). Therefore, the wheel-rim cover body (2) can sustain the wind pressure happened during the driving of car to ensure that the wheel-rim cover body (2) is avoided from being detached from the wheel-rim body (1).

Referring to FIG. 11, a schematic view of the second embodiment of the interlocking method and its structure for wheel-rim cover of the present invention is shown, The difference between the second embodiment and the first embodiment is that the engaging seats (24) in the second embodiment have a plurality of support plate (241) projecting at the front side. A pivotal shaft (242) is provided through all the support plates (241), and a plurality of pivotal claws (41) are alternately provided on the upper and lower sides at the rear end -of each interlocking block (4). The pivotal claws (41) of the interlocking block (4) are pivotally mounted on the pivotal shaft (242) in order that the interlocking block (4) can be rotated with the pivotal shaft (242) of the engaging seat (24) as the axis. In this manner, the interlocking operation can be conducted. The above embodiments or the figures are not restrictive to the aspect of the present invention, pivotal contact structure or the quantities of corresponding engaging seat and interlocking block. Modifications and variations proposed by the person skilled in the art without departing from the spirit of the present invention are considered to be still within the scope of the present invention.

Apparently from the description of the above elements composition and embodiments, this invention surely has the following advantages when comparing with prior art.

-   1. After the completion of assembling, each interlocking block of     the present invention can be rotated to allow its two ends abut     against the wheel-rim body and the wheel-rim cover body such that     the wheel-rim cover body is stably inserted and fixed in the front     side of the wheel-rim body. Therefore, the wheel-rim cover body can     sustain the wind pressure happened during the driving of car to     ensure that the wheel-rim cover body is avoided from being detached     from the wheel-rim body. -   2. During the stacking of the wheel-rim cover body of the present     invention, the stacking height of the wheel-rim cover body can be     reduced without the affection of height of the interlocking block so     as to save stocking space in factory. Accordingly, the delivery cost     including export delivery expense and multi-stage inland delivery     expense can be remarkably reduced.

Summing up above, the embodiment of this invention can reach expected effectiveness, and the specific configurations disclosed herein have yet not seen in the prior art of the same category of product, even has not been opened to the public before application. 

1. An interlocking method for wheel-rim cover, wherein a plurality of interlocking blocks pivotally provided on the wheel-rim cover body are rotated with the pivotal contact portion as axis and the other end of each interlocking blocks pass through the horizontal radial line of the axis, to ensure that said interlocking blocks abut against and interlock within the engaging grooves of the wheel-rim body.
 2. An interlocking method for wheel-rim cover as claimed in claim 1, wherein said wheel-rim cover body is provided with engaging seats that are pivotally contacted with said interlocking blocks, said engaging seats being formed with engaging slots for the insertion of said interlocking blocks.
 3. An interlocking method for wheel-rim cover as claimed in claim 2, wherein the inner walls of each said engaging slot are tapered inward to form inclined surfaces.
 4. An interlocking method for wheel-rim cover as claimed in claim 2, wherein both sides of each said engaging seat are respectively formed with ridge portions, and both sides of each said interlocking blocks are formed with pivotal contact portions, each pivotal contact portion being provided with protrusion which engages with said ridge portion tightly.
 5. An interlocking method for wheel-rim cover as claimed in claim 1, wherein said wheel-rim cover body is provided with engaging seats which have a common pivotal shaft, and said interlocking blocks are formed with pivotal claws which are pivotally connected with said pivotal shaft.
 6. An interlocking method for wheel-rim cover as claimed in claim 5, wherein said engaging seats are provided with a plurality of support plates through which said pivotal shaft is connected.
 7. An interlocking structure for wheel-rim cover, having a wheel-rim body and a wheel-rim cover body, wherein said wheel-rim cover body is pivotally contacted with interlocking blocks the other ends of which are inserted into the engaging groove of said wheel-rim body, and the length between both ends of each said interlocking block is larger than the vertical distance from the engaging groove of the wheel-rim body to the inside edge of the pivotal contact end of each interlocking block and the wheel-rim cover body.
 8. An interlocking structure for wheel-rim cover as claimed in claim 7, wherein said wheel-rim cover body is provided with engaging seats that are pivotally contacted with said interlocking blocks, said engaging seats being formed with engaging slots for the insertion of said interlocking blocks.
 9. An interlocking structure for wheel-rim cover as claimed in claim 8, wherein the inner walls of each said engaging slot are tapered inward to form inclined surfaces.
 10. An interlocking structure for wheel-rim cover as claimed in claim 8, wherein both sides of each said engaging seat are respectively formed with ridge portions, and both sides of each said interlocking block are formed with pivotal contact portions, each pivotal contact portion being provided with protrusion which engages with said ridge portion tightly.
 11. An interlocking structure for wheel-rim cover as claimed in claim 7, wherein said wheel-rim cover body is provided with engaging seats which have a common pivotal shaft, and said interlocking blocks are formed with pivotal claws which are pivotally contacted with said pivotal shaft.
 12. An interlocking structure for wheel-rim cover as claimed in claim 11, wherein said engaging seats are provided with a plurality of support plates through which said pivotal shaft is connected. 